Impact of Natural Binder on Pellet Quality
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Production of energy pellets from waste straw is a good way to manage the straw surplus and to increase profitability of the agricultural enterprises. The present paper covers the results of the tests of the hardness of pellet made from a mixture of rape straw with an addition of wheat flour as a natural binder. The samples of raw material for the production of pellet included 0.0%, 4.1% and 7.8 % of wheat flour, which was determined according to dry matter. The average relative humidity of the raw material samples was: 11.6 %, 22.3% and 30.7%. The measurement of the pellet hardness was performed with the aid of the Kahl method. The influence was found of wheat flour contents and the relative humidity of the mixture on the increased hardness of pellet.
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